package cn.edu.ctbu.scoremg.interceptor;

import cn.edu.ctbu.scoremg.entity.Student;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

public class LoginInterCeptor implements HandlerInterceptor {

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        Object userInfo = request.getSession().getAttribute("userInfo");
        if (userInfo != null && userInfo instanceof Student) {
            return true;
        }
        response.sendRedirect("/login");
        return false;
    }

    @Override
    public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler, ModelAndView modelAndView)  {

    }
    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex){

    }
}
